Good point, i guess i'll want to use some PC power supply for the motor.

Cheers!

d

On Dec 1, 2008, at 5:07 PM, achtung_999 wrote:

> I'd say check out how much current this baby is going to suck from
> the a100.You
> don't want to blow the powersupply in your a100, I guess.
>
> P = I * U
>
> So check the wattage of the motor.
> But you probably already did.
>
> Greets
>
> Ernst
>
> On Mon, Dec 1, 2008 at 4:05 PM, Denis Gökdag < q-art@... > wrote:
>
> > Hi all,
> >
> > i want to build myself a little VC electro motor, you know, one of
> > these little model-plane 12V motors but with VC RPM. It's not
> supposed
> > to track V/oct cleanly, just be somewhat predictably controllable
> via
> > a CV.
> >
> > I'm not much of an electronics genius, but i figured that i would
> use
> > a non-inverting amp based on an OP-amp to buffer the CV, then use
> the
> > output as the voltage to drive the motor (the second connector of
> the
> > motor being connected to ground). Obviously, the Op-amp would be
> > powered by the a-100 +/-12 V, so the design should be able to output
> > -12...12V to drive the motor (with the negative voltage reversing
> > direction).
> >
> > Does that sound about right
> >
> > cheers,
> > denis
> >
> >
> >
>
> .
>
>



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